标题: IEC 60076-3-2013 Power transformers – Part 3: Insulation levels, dielectric te [打印本页] 作者: liuxilin1215 时间: 2013-10-17 07:05:03 标题: IEC 60076-3-2013 Power transformers – Part 3: Insulation levels, dielectric te
IEC 60076-3-2013 Power transformers – Part 3: Insulation levels, dielectric tests and external clearances in air